KEY: Effulgence.
SYN: Splendor, lustre, brilliancy, luminosity.
ANT: Darkness, obscuration, tenebrosity.

• mensuration
• Mention
• Mephitic
• Mercantile
• Mercenary
• Merchandise
• Merchant
• Merciful
• Mercy
• Mere
• Meretricious
• Merge, [See SINK]
• Meridian
• Merit
• Merry, [See MELANCHOLY]
• Mesh
• Message
• Messenger
• Metaphor
• Metaphorical
• Metaphysical
• Mete
• Meteoric
• Method
• Methodical